Improvement in heating-stoves



Ins. BARR.

HEATING-STOVE. I

N-o.170,506. Patented Nov.30,1875.

N. PETERS, FHOTO-LITHOGRAFHER. WASHINGTON. D C,

UNITED STATEs PATENT OFFICE.

ROBERT S. BARR, OF MUNNSVILLE, NEW YORK, ASSIGNOROF TWO-THIRDS HIS RIGHT TO WM. STRINGER AND WM. H. STRINGER, OF SAME PLACE.

Specification forming part of Letters Patent-No. 170,506, dated November 30, 1875; application filed September 23, 1873.

To all whom it may concern Be it known that I,RoBERT S. BARR, of Munnsville, in the county of Madison and State of New York, have invented a certain Improvement in Stoves, of which the following is a specification:

This invention relates to that class of stoves in which intense heat is to be employed-such, for instance, as are used for the purpose of drying hops and other substances.

My improvement consists in forming the drum or cylinder of a series of open-jointed staves or sections, so as to allow it to freely expand and contract without danger of cracking or breaking, the joints between the staves being covered by overlapping flanges or their equivalents.

,Figure 1 is an elevation of my improved stove. Fig. 2 is a section on a plane indicated by the line m at, Fig. 1, showing one method of covering the.open joints between the staves.

The same letters of reference are used in both figures in indicating identical parts.

- The base A contains the ash-chamber, and supports the grate D in the usual manner. The drum or cylinder B, which is confined between the base and the top plate 0 by the tie-rods E, consists of a number of vertical sections or staves. There are spaces b left between the several staves of the cylinder, so that they may freely expand laterally when the stove is heated, without danger of injuring the cylinder as a whole.

. It almost always happens that one side of a stove is heated more than the other, and the drum or cylinder being in consequence expanded unequally at different points, is apt to be damaged by the uneven strain upon it, and in like manner itsufl'ers from uneven cooling.

These efl'ects are more especially noticeable .in stoves of the character referred to; but the injurious results are wholly obviated by the described method of constructing the drum.

Each stave is constructed with a flange, b,v

to overlap and cover the joint b adjacent to it.

In lieu of this manner of making the joints, the staves may be united by tongue and groove, or scarfed; but in all cases room must be left for the expansion of; these staves independently of one another.

What I claim as my invention, and desire ROBERT s. BARR.

Witnesses:

JAMES S. STEWART, HARVEY L. HOPKINS. 

